Comparison of Myriophyllum Spicatum and artificial plants on nutrients removal and microbial community in constructed wetlands receiving WWTPs effluents. (February 2021)

• Record Type: Journal Article
• Authors: Qiu, Zheng; Zhang, Songhe; Ding, Yan; Zhang, Wenjun; Gong, Lixue; Yuan, Qiang; Mu, Xiaoying; Fu, Dongwang
• Is Part Of: Bioresource technology. Volume 321(2021)
• Publication Date: 2021-02
• Subjects: WWTPs effluents -- Nutrient removal -- Microbes -- Substrates -- Co-occurrence network; Biomass -- Periodicals; Biomass energy -- Periodicals; Bioremediation -- Periodicals; Agricultural wastes -- Periodicals; Factory and trade waste -- Periodicals; Organic wastes -- Periodicals; Bioénergie -- Périodiques; Déchets agricoles -- Périodiques; Déchets industriels -- Périodiques; Déchets organiques -- Périodiques; Déchets (Combustible) -- Périodiques; 662.88
• DOI: 10.1016/j.biortech.2020.124469
• Languages: English
• ISSNs: 0960-8524

Abstract

Graphical abstract: Highlights: Nutrients removal was generally higher in constructed wetlands with AP than MS. Substrate types play important role in determining epiphytic microbial community. Relative abundance of algae was higher in biofilms on AP than MS. Network analysis revealed more complex interactions in biofilms on MS than AP. Abstract: The impacts of WWTPs effluents on nutrients removal and epiphytic microbial community in constructed wetlands dominated by submersed macrophytes remain to be fully illustrated. In this study, compared to M. Spicatum, artificial submersed macrophytes (control) generally had higher NH4 + -N (78.35% vs 80.52%) and TN (73.35% vs 90.25%) removal rates and similar COD (70.64% vs 70.80%) and TP (59.86% vs 60.82%) removal rates in wetlands receiving simulated effluents of WWTPs (GB18918-2002). Microbial population richness was higher in epiphytic biofilms on M. Spicatum than artificial ones, and substrates played the most decisive role in determining the microbial diversities. Network analysis revealed that there were more complex interactions among environmental parameters, bacteria and eukaryotes in M. Spicatum systems than in artificial ones. Nutrients in effluents could cause damage to M. Spicatum . The results highlight that artificial plants have better performance on effluents deep treatments than submerged plants.